//
//  NSNull+Extension.h
//  GuaPi
//
//  Created by 23 on 2017/7/11.
//  Copyright © 2017年 Joanlove. All rights reserved.
//

#import <Foundation/Foundation.h>

#define XYNullObjects @[@"",@0,@{},@[]]

@interface NSNull (Extension)

@end
